Neutralino polarization effect in the squark cascade decay at LHC

Details Neutralino polarization effect in the squark cascade decay at LHC Neutralino polarization effect in the squark cascade decay at LHC

2004-11-28

arxiv.org/abs/hep-ph/0411360v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages. Talk given at the 12th International Conference on Suypersymmetry and Unification of the Fundamental Interactions (SU

Scientific paper

We study the effect of the neutralino polarization in a squark cascade decay $\tilde{q} \to q \tilde{\chi}^0_2 \to q l^\pm \tilde{l}^\mp \to q l^\pm \tilde{l}^\mp \to q l^\pm l^\mp \tilde{\chi}^0_1$. Charge asymmetry in the lepton-jet invariant mass distribution appears depending on the chirality structure of the sfermion-fermion-neutralino coupling. With use of the Monte Carlo simulation, we show that the asymmetry is measurable in LHC. We also show that the distribution of the charge asymmetry is sensitive to the (s)lepton flavor.

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